The Effect of Energy Densities on the Shear Bond Strength of Self-Adhering Flowable Composite to Er:YAG Pretreated Dentin

Table 2

Predominant failure patterns (in percent) by stereomicroscope under ×20 magnification (/group).

Experimental group	Failure mode
	Score 1 (%)	Score 2 (%)	Score 3 (%)	Score 4 (%)	Score 5 (%)
Group 1 (control)	0 (0%)	0 (0%)	0 (0%)	2 (16.68%)	10 (83.32%)
Group 2	0 (0%)	1 (8.34%)	2 (16.68%)	5 (41.64%)	4 (33.34%)
Group 3	0 (0%)	0 (0%)	1 (8.34%)	7 (58.33%)	4 (33.33%)
Group 4	0 (0%)	0 (0%)	0 (0%)	4 (33.33%)	8 (66.67%)
Group 5	0 (0%)	0 (0%)	1 (8.34%)	8 (66.66%)	3 (25%)